MULTIMEDIA 59
If equipped with a removable lower front
fascia/bumper grille, it is recommended to
remove it for track use during warm/hot
weather to improve cooling airflow to critical
powertrain and cooling system components.
All SRT vehicles are track tested for 24 hours
of endurance. However, it is recommended
that suspension system, brake system, prop
shaft, and half shaft boots should be
checked for wear or damage after every track
event.
Track usage results in increased operating
temperatures of the engine, transmission,
clutch (if equipped), driveline and brake
system. This may affect noise (NVH) counter-
measures designed into your vehicle. New
components may need to be installed to
return the system to the original NVH perfor-
mance.
Tire pressure:
40 psi (276 kpa) Hot, recommend 32 psi
(221 kpa) Front, 30 psi (207 kpa) Rear
Cold
NOTE:
It is recommended that you target 40 psi
(276 kpa) Hot Tire Pressure at the conclusion of
each track session. Starting at 32 psi (221 kpa)
Front and 30 psi (207 kpa) Rear Cold, and
adjusting based on ambient and track condi-
tions, is recommended. Tire pressure can be
monitored via the instrument cluster display
and can assist with adjustments.
Track Burnishing Your Brakes
To avoid “green lining fade” during track use,
the brake pads and rotors must have a thermal
burnish for factory installed components or
when new brake friction components are
installed:
1. Use one track session to burnish brakes by
driving at 75% speed. Brake at approxi-
mately 0.60-0.80 g max without Anti-lock
Brake System (ABS) intervention.
2. Lap the track in this manner until you start
smelling the brakes. Continue for another
half lap at speed, then do a two-lap
cooldown with minimal brake application.
Make sure the brakes are not smoking. If
they are, do another cooldown lap.
3. Do not continue for more than one full
burnishing lap after you start smelling the
brakes. Do not get them smoking heavily.
This will get them too hot and affect their life
negatively in future track use.
4. Allow vehicle to sit and cool in the paddock
for at least 30 minutes. If an infrared
thermal gun is available, allow rotors to cool
to 200°F (93.3°C) before going back out.
5. There should be a thin ash layer when
inspecting the pads installed in the caliper.
Having the ash layer go more than half the
thickness of the pad material indicates too
aggressive of a burnish.
5
21_LALD_SU_EN_USC_t.book Page 59
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